Gravel-washer



(No Model.) 2 Sheets-Sheet 1.

O. S. CLARK. GRAVEL WASHER.

No. 422,378. Patented Mar. 4, 1890.

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2 SheetsShet 2.

(No Model.)

0. SfOLARK.

GRAVEL WASHER.

Patented Mar. 4, 1890.

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UNITED STATES PATENT OFFICE.

CHAPMAN S. CLARK, OF

KANSAS CITY, MISSOURI.

G RAVEL-WASH ER.

SPECIFICATION forming part of Letters Patent No. 422,378, dated March 4,1890.

Application filed November 7, 1889. Serial No. 329,555. (No modelf! Towhom it may canccrn:

Be it known that I, CHAPMAN S. CLARK, of Kansas City, Jackson county,Missouri, have invented certain new and useful Improvements inGravel-Vashers, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, forming apart hereof.

My invention relates to improvements in gravel-Washers; and it consistsin the novel construction and arrangement hereinafter fully set forthand described.

The objects of my invention are, first, to provide a gravelwasher whichwill thoroughly cleanse the gravel and conduct and deposit it to asuitable chute, where it passes through grading-sieves, and is thencecaught in proper receptacles placed there to receive it; second, to dothis with simplicity and economy. I attain these ends by usingthemechanism illustrated in the accompanying drawings, in whicl1--- Figure1 is a top plan view of my device embodying the improvements thereof.Fig. 2 is a sectional detail view taken through line 00 a: of Fig. 1 andshowing the relative position of troughs B and O and spiral screwE,together with. pipes H H. Fig. 3 is a detail view of the perforatedshaft D, provided with heaters or arms F, secured and held in positionby bands or hoops f. Fig. 4 is a sectional detail view of thereceiving-trough G, showing it on the plane whiehit will occupy in usefilled with water, the spiralscrew E being removed.- Fig. 5 is a detailinperspective of the chute I, which conducts the gravel, after it haspassed through cleansing-trough G, into the grading-sieves. Fig. 6 is aside elevation of the troughs C and B, showing them on an inclinedplane. This is the position they occupy when in use, though they may bemade nearly level or at a greater angle if found necessary. Fig. 7 is adetail in perspective of one of the heaters or arms F and band or hoopf.

Referring to the drawings by letter, A represents my invention providedwith the mech anism hereinafter described.

B is the trough or sluice properly secured on bearing 1), and serves toconduct the water, loam, and other refuse matter away from mygravel-washing device.

C is the upper trough, having its bottom perforated at c and beingprovided at its top edges with two suitable water-pipes, which areperforated on the under side insuch a .manner that a constant stream ofwater is brought to bear on the gravel in the trough.

D is a perforated hollow shaft, around which is fastened a spiral screwE, which by its revolutions forces the gravel upward toward the chute I.

F are heaters properly secured to said perforated shaft D by means ofsuitable metallic bands f. These heaters serve to agitate the gravelwhen thrown into. receiving-trough G, and as the screw E revolves thegravel is forced upward and deposited in trough O. Said trough G is madeon an inclined plane, as represented in Fig. 4, and is supplied withwater from pipe 6. The object of this is to soften the clods of graveland dirt that are thrown into said receiving-trough, and by the time ithas passed into trough C it is thoroughly wet and loose, which makes itan easy matter to cleanse it as it travels through said trough O.

H H are suitable pipes secured on the upper edges of trough G and heldin position by staples or loops h. Said pipes H are perforated on theirunder sides, so that there is a constant stream of water flowing on thegravel in the trough C, which washes it thoroughly'in its passage fromtrough G to chute I, all the loam and other refuse passing off through,the perforations 0 into the chute B, and is thereby conducted away fromthe gravel-washer.

J is a beveled cog-wheel properly secured on shaft j, and this meshes inwith a similar cog-wheel J, which is keyed or otherwise rigidly securedon hollow shaft D. Said shaft j is provided at its outer end withsprocketwheel L and chain Z, which furnish power for operating thisdevice, although any suitable motive power may be applied.

K is a gear-wheel keyed or otherwise rigidly secured on shaft D, andthis gears with a corresponding wheel K, which is secured on the lowerend of shaft D.

e, i, and i are the gradingsieves, through which the gravel passesbefore being deposited in receptacle prepared for its transportation.

1, 2, 3, 4, and 5 are suitable trusses or supports, which form bearingsfor shafts D and D and 7'.

6 is the water-pipe which carries the water to trough G; 7, thesupply-pipe which furnishes water for perforated pipe II.

8 is also a water-pipe secured on the outer end of perforated shaft D bya swivel-joint S. The water passing through said pipe 8 into perforatedshaft D forces its way through perforations (Z and up through the graveland dirt, thus washing it cleanly when passing through trough C. K

The Archimedean screws E and E are keyed or otherwise rigidly secured toshafts D and D in such a manner as to force the gravel outward andupward by their revolutions, the same being agitated by heaters F, asheretofore described, thoroughly cleansing the gravel by the supply ofwater from perforated shaft D and pipes II.

Having thus fully described my invention, what I claim as being new, anddesire to secure by Letters Patent, is-

1. In a gravel-washer, the combination of a receiving-trough having aworm-shaft mounted therein carrying a series of heaters, a troughconnecting with the said receivingtrough having a hollow perforatedwater-distributing worm-shaft mounted therein, also carryln g boaters,and mechanism connecting with the hollow shaft for operating the twoshafts simultaneously.

2. In a gravel-washer, the combination of a receiving-trough having aworm-shaft carrying boaters, a trough connecting with thereceiving-trough having a hollow perforated worm-shaft carrying heaters,and a water-s11 pply pipe swiveled to the said hollow shaft.

3. In agravel-washer, the combination of a receiving-trough, an inclinedtrough connecting therewith having a hollow perforated worm-shaftmounted therein carrying heaters, a water-supply pipe connecting withthe hollow shaft, and water-supply pipes carried by the trough.

4. In a gravel-wasl1er,tl1e combination of a rcceiving-trough, aperforated trough connecting therewith, water-supply pipes connectingwith the latter trough, a chute, a series of grading-sieves, mechanismfor conveying the gravel from the receiving-trough to the sieves, and achute arranged below the perforated trough for conveying off the waterafter the gravel has been cleansed.

In testimony whereof I afiix my signature in presence of two witnesses.

CHAPMAN S. CLARK.

Witnesses:

J. E. HIeDoN, R. A. BALnnasoN.

